-Multidisciplinary Data Centers

                                                                                
                                                 
 (login "gcdir")                               
    The Global Change Master Directory is a multidisciplinary on-line           
information system containing descriptions of Earth and space science           
data holdings available to the science community. These include data from       
NASA, NOAA, NCAR, USGS, DOE (CDIAC), EPA, NSF and other  U.S. and               
international agencies, universities, and research centers.                     
  For telnet access, login as "gcdir".                                          
                                                                                
                                        
                                                   
  National Center for Atmospheric Research (NCAR) Data Support Section          
maintains a large archive of a variety of atmospheric, oceanic, and             
geophysical datasets, encompassing most subdisciplines. This site contains      
information (metadata) on available datasets; a few small datasets are          
directly available.                                                             
                                                                                
                                                 
  National Oceanic and Atmospheric Administration (NOAA) Environmental          
Information Services Home Page.  This "master page" links to the Web            
pages of the various NOAA Data Centers:                                         
  National Climatic Data Center (NCDC)           
  National Oceanographic Data Center (NODC)      
  National Geophysical Data Center (NGDC)        
  You can search the NOAA dataset catalog, which covers all the NOAA Data       
Centers.  The individual data centers are also listed elsewhere in this         
document.                                                                       
                                                                                
                                                       
  Home page for Earth Observing System (EOS).  This "master page" links         
to the home pages of the various Distributed Active Archive Centers (DAACs),    
which provide data from EOS:                                                    
  JPL Physical Oceanography DAAC            
  Marshall Space Flight Center DAAC           
  Goddard DAAC         
  Earth Resources Observation Systems DAAC                                      
                            
  National Snow and Ice Data Center DAAC                                        
                              
  Langley DAAC                                 
  Oak Ridge National Laboratory DAAC            
  NOAA's Satellite Active Archive                  
  Consortium for International Earth Science Information Network (CIESIN)       
                                                     
  Alaska Synthetic Aperture Radar (SAR) Facility                                
                          
  National Space Science Data Center (NSSDC) earth science archive page.  A     
new policy from the Earth Sciences and Applications Division at NASA            
Headquarters directed NSSDC to distribute its holdings to various designated    
archives.  NSSDC no longer archives any new Earth science data; this site       
describes the Earth science data transfer activities and provides selective     
data and resources available to users.                                          
                                                                                
                                     
  United Nations Environment Programme (UNEP) Global Resource Information       
Database (GRID).  Global and European datasets for environmental researchers,   
including vegetation and topography maps, maps of population and other          
human-related items, and various climatologies.                                 
                                                                                
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